potFader Send

int potPin = A0; //Analog pin 0
int lastRead = 0;

void setup(){
  Serial.begin(9600);
}


void loop(){
  sendReading(); //send the analog reading out
}


void sendReading(){
  //read the digital pin, send a value only if it has changed
  int potValue = analogRead(potPin) / 4; //divide by 4 so the value is 0-255

  //We ONLY want to send changes so the serial buffer does not overflow with unneeded values
  if(potValue != lastRead){
    send(potValue);
    lastRead = potValue;
  }

}


void send(int value){
  value = constrain(value, 0, 255); //cant send anything higher than 255
  Serial.write(value); //send that value through the serial port
}